#!/usr/bin/node

const argv = process.argv,
      log = console.log;

if(argv.length!==3){
  log('cmd exit-code');
  process.exit(2);
}

if(isNaN(Number(argv[2]))){
  log('argv must be number');
  process.exit(3);
}

if(Number(argv[2])<0){
  log('argv must >=0');
  process.exit(3);
}

process.exit(argv[2]);
